Window-ventilator.



H. W. DREW. wlNDow vENmAoR.

`APPLICATION FILED AUG.30, 1912.

H. W. DREW.

WINDOW VENTILATOR.

APPLICATION man Almen, i912.

vPeuted June 26, i917'.

3 suffers-SHEET dame/5565 i' HERBERT W. DREW, OF CHICAGO, ILLINOIS.

WIivDoW-vENTILAroR.

Application filed August 30, 1912.

To all 'whom t may concern:

Be it known that I, HERBERT 7. DREW, a citizen of the United States, residing at Chicago, in the count;7 of Cook and State of Illinois, have invented certain new and useful Improvements in lindow-Ventilators, of which the following is a specification.

The principal object of my `invention is to provide a new and improved ventilator to be used in connection with windows of dwellings or other buildings or closed vehicles. Another object of my invention is to provide a convenient window sash ventilator with means for purifying the air that enters through the same. These objects and various others will be readily appreciated in connection with the accompanying description of one specific embodiment of my invention. In the drawings I have illustrated this one embodiment and I now proceed to describe the same, but it will be understood that the invention is defined in the appended claims.

Referring to the drawings- Figure 1 is a vertical section showing my improved ventilator in closed position with the window also closed.

Fig. 2 shows my ventilator in use in combination with the open window.

Fig. 3 is a top plan view of the end members in closed relation.

Fig. t is an inside elevation of the same.

Fig. 5 is a top plan view of the end members in open relation.

Fig. G is an inside elevation of the same.

Fig. 7 is a perspective view of the end members spaced apart to show them more clearly; and

Fig. 8 is a perspective view looking across a vertical section toward the end of the device showing the ventilator members proper in readiness to be assembled with said end members.

This device is adapted to be used in coinbination with the ordinary window having a window sill l5, the window glass 16, lower sash member 17, and side posts 1S. At each side of the window an angle member 19 is fastened by screws through the holes 2O to the respective side posts 1S. A similar opposed angle member 21 is pvoted to the angle 1 9 at 22. The links 23 pivoted at 24 connect these two angle members 19 and 21. Hanging from the pivot 2st is a gore shaped piece of sheet metal 25 that bridges across Specification of Letters Patent.

Patented June 26, Milli?.

Serial No. l717,900.

the space beti Yeen the angles I9 and 2l when they are opened apart. The vtongue 2G turned in from the edge of the angle 19 limits the movement of the plate 25 and the tongue 2T turned in likewise limits the movement of the jointed links 2?). A washer 2S between the angles 19 and 2l at the pivot spaces them apart so as to make room between them for the links 23 and the plate The inturned fiange 2l of the angle 2l has holes with adjacent slots to receive the heads of the screws 34 carried by the deflector.

This delieetor is a rectangular glass mounted in a wooden frame whose side members are 33 carrying the screws -lf. l-Iinged to the deflector '30 at its lower edge by the hinge is a woven wire screen 3l mounted in a rectangular wooden frame.

illhen the detlector 30 and the screen 3l are spaced apart in V-shape. as shown in Fig. S. a cloth .filter 35 stretches across their upper edges. The outside and inside edges of the cloth 85 are doubled. as indicated at 36, and small metal rods 37 are slipped within the folds 3G. Clips 3S on the upper edges of the deiector 30 and screen 3l are adapted to have the rods BT thrust under them, thusl holding the outside and inside edges of the cloth to the upper edges of the screen 3l and the deflcctoi-SO resi'iectivcly.

At the sides of the window the cloth 55 is extended and tapered to form the flaps 4I. The edges of these fiaps -lfl are provided with push fasteners 39, like glove fasteners, and studs -lO are provided on the adjacent edges of the defiector and screen frames to receive the fasteners 39.

Then the window is closed and the device is not in use it mayv be folded up. as shown in F I. lVhen desired to ventilato the room the window sash can be raised, as shown in Fig. 2. and the deflector 3() swung into the room, thus stretching the filter cloth 35 out. as shown in Fig. 2. lVhen it is desired to remove the apparatus from the window the screen 3l can be swung into the room from the position shown in Fig. 2 and then both detiector 30 and screen 3l with the .filter cloth can be lifted out and taken aside by disengaging the screws 34 from the holes 29.

I claim:

1. In a window ventilator, a stationary member to be rigidly attached to the side post of a window casing, another member pivoted to said fixed member at their lower ends, jointed links connecting the upper' ends of the fixed and movable members, and a floating filler plate attached to said jointed links at their intermediate point, said filler plate being adapted to close the space between said fixed and movable members when they are spread apart.

2. In combination with a window frame and a window sash of the type adapted to be raised and lowered in the frame, end members attached to the side posts of said frame, and a deflector and screen of equal length hinged together along their lower edges and adapted to be dropped into said end members and retained in operative position thereby.

ln a window ventilatm', two members `pivoted together at their lower ends, links pivoted to the upper ends of said members, said links being pivotally connected to each other at their free ends, a filler plate pivoted to said links where they are pivoted to each other and arranged to close the space between said members when they are spread apart, and a stop on one of said members to limit the range of movement of said filler plate. Y

In testimonyl whereof, I have subscribed my name.

HER-BERT lV. DREV.

Witnesses:

GEO. L. WILKINSON, HENRY A. PARKS.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner ef latents,

Washington, D. C. 

